Which of the following statements are true about the dynamic MAC address table?

Dynamic MAC address entries are obtained by learning the source MAC addresses of packets received by an interface and can be aged out.

After a device is reset, an interface card is hot-swapped, or an interface card is reset, dynamic MAC address entries on the device or interface card are lost.

You can obtain the number of users communicating on an interface by checking the number of specified dynamic MAC address entries.

After a device is reset, an interface card is hot-swapped, or an interface card is reset, the saved entries on the device or interface card are not lost.